The FBI defines domestic terrorism as events that appear intended to "intimidate or coerce a civilian population" or "influence the policy of a government by intimidation or coercion." If that is not what the Left has been engaged in with increasing ferocity, especially over the past two weeks, then “intimidation and coercion” have lost their meaning.

The United States has many enemies in the world, but it is hard to find one that deliberately is trying to undermine U.S. law by exporting its own citizens to change the demographic and politics of its supposed ally. It is almost impossible to find enemies that can so carefully extract billions of dollars in remittances and surpluses from the U.S. economy. Most enemies do not send as many human traffickers and drugs into the U.S. as does Mexico. And does an Iran or North Korea boast that it has the right to violate U.S. law, interfere in the domestic politics of America, and vow that it will continue to do so as it pleases?

Unless Democrats and the cultural and political leadership of the Left come out firmly against mob violence this dangerous situation is only going to escalate. A good start would be a congressional censure of Rep. Waters, but unambiguous statements from Left-leaning cultural and media leaders, like The Washington Post, that political violence is not to be tolerated are also needed.

The National Border Patrol Council, the union that represents more than 16,500 border patrol agents, opposes the House border security bill (H.R. 399) because it is mere “window dressing” - joining the immigration officers' union, which called the bill "a global joke."